getty images
San Francisco
Coverage: Citywide network of 1,500 hot spots
Expected completion: Late 2006 or early 2007
Cost to build: $8 million to $10 million
Vendor: EarthLink, with partners Google, Motorola and Tropos Networks
Cost to users: None for basic, ad-supported service at low upload/download speed; as much as $20 a month for faster speeds